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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What term did Democritus use to describe indivisible particles?
💡 Hint: Think of a Greek term that means 'uncuttable'.
Question 2
Easy
Which subatomic particle did J.J. Thomson discover?
💡 Hint: It's negatively charged and found outside the nucleus.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What did Democritus believe about matter?
- It is made of divisible particles
- It is made of indivisible particles
- It can be created and destroyed
💡 Hint: He used a Greek word meaning 'uncuttable' to describe these particles.
Question 2
Which scientist is known for the discovery of the electron?
- Dalton
- Thomson
- Rutherford
💡 Hint: Think of the scientist who experimented with cathode rays.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Compare and contrast the atomic models proposed by Dalton, Thomson, and Rutherford. Discuss the significance of each discovery.
💡 Hint: Think about how each theory builds on the previous one to create a more complex understanding of atoms.
Question 2
Explain how the understanding of isotopes impacted atomic theory following the discovery of neutrons.
💡 Hint: Consider the implications of neutrons existing without charge alongside protons in the nucleus.
Challenge and get performance evaluation